package facade;

/**
 * @Author liangliangzhao
 * @data 2023/4/14 11:20
 */

public class DVDPlayer {

    //使用单例模式 饿汉式
    private static DVDPlayer instance = new DVDPlayer();

    public static DVDPlayer getInstance(){
        return instance;
    }

    public void on(){
        System.out.println(" dvd on ");
    }

    public void off(){
        System.out.println(" dvd off ");
    }
    public void play(){
        System.out.println(" dvd is playing ");
    }

    public void pause(){
        System.out.println(" dvd pause... ");
    }
}

